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  <title>预定义常量</title>

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</div><hr /><div id="imagick.constants" class="appendix">
 <h1>预定义常量</h1>

 <p class="simpara">下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。</p>
 <dl>

  <strong class="title">COLOR_* constants</strong>
  <p class="para">Colortype constants. These constants are mainly used with 
   <a href="class.imagickpixel.html" class="classname">ImagickPixel</a>.
  </p>
   
    <dt id="imagick.constants.color-black">
     <strong><code>imagick::COLOR_BLACK</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Black color
     </span>
    </dd>

   
   
    <dt id="imagick.constants.color-blue">
     <strong><code>imagick::COLOR_BLUE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Blue color
     </span>
    </dd>

   
   
    <dt id="imagick.constants.color-cyan">
     <strong><code>imagick::COLOR_CYAN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Cyan color
     </span>
    </dd>

   
   
    <dt id="imagick.constants.color-green">
     <strong><code>imagick::COLOR_GREEN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Green color
     </span>
    </dd>

   
   
    <dt id="imagick.constants.color-red">
     <strong><code>imagick::COLOR_RED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Red color
     </span>
    </dd>

   
   
    <dt id="imagick.constants.color-yellow">
     <strong><code>imagick::COLOR_YELLOW</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Yellow color
     </span>
    </dd>

   
   
    <dt id="imagick.constants.color-magenta">
     <strong><code>imagick::COLOR_MAGENTA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Magenta color
     </span>
    </dd>

   
   
    <dt id="imagick.constants.color-opacity">
     <strong><code>imagick::COLOR_OPACITY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Color&#039;s opacity
     </span>
    </dd>

   
   
    <dt id="imagick.constants.color-alpha">
     <strong><code>imagick::COLOR_ALPHA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Color&#039;s alpha
     </span>
    </dd>

   
   
    <dt id="imagick.constants.color-fuzz">
     <strong><code>imagick::COLOR_FUZZ</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Color&#039;s fuzz
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">DISPOSE constants</strong>
  <p class="para">Dispose type constants</p>
   
    <dt id="imagick.constants.dispose-unrecognized">
     <strong><code>imagick::DISPOSE_UNRECOGNIZED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Unrecognized dispose type
     </span>
    </dd>

   
   
    <dt id="imagick.constants.dispose-undefined">
     <strong><code>imagick::DISPOSE_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Undefined dispose type
     </span>
    </dd>

   
   
    <dt id="imagick.constants.dispose-none">
     <strong><code>imagick::DISPOSE_NONE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      No dispose type defined
     </span>
    </dd>

   
   
    <dt id="imagick.constants.dispose-background">
     <strong><code>imagick::DISPOSE_BACKGROUND</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Dispose background
     </span>
    </dd>

   
   
    <dt id="imagick.constants.dispose-previous">
     <strong><code>imagick::DISPOSE_PREVIOUS</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Dispose previous
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">Composite Operator Constants</strong>
  
   <dt id="imagick.constants.composite-default">
    <strong><code>imagick::COMPOSITE_DEFAULT</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The default composite operator
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-undefined">
    <strong><code>imagick::COMPOSITE_UNDEFINED</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Undefined composite operator
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-no">
    <strong><code>imagick::COMPOSITE_NO</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     No composite operator defined
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-add">
    <strong><code>imagick::COMPOSITE_ADD</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The result of image + image
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-atop">
    <strong><code>imagick::COMPOSITE_ATOP</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The result is the same shape as image, with composite image obscuring image where the image shapes overlap
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-blend">
    <strong><code>imagick::COMPOSITE_BLEND</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Blends the image
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-bumpmap">
    <strong><code>imagick::COMPOSITE_BUMPMAP</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The same as COMPOSITE_MULTIPLY, except the source is converted to grayscale first.
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-clear">
    <strong><code>imagick::COMPOSITE_CLEAR</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Makes the target image transparent
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-colorburn">
    <strong><code>imagick::COMPOSITE_COLORBURN</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Darkens the destination image to reflect the source image
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-colordodge">
    <strong><code>imagick::COMPOSITE_COLORDODGE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Brightens the destination image to reflect the source image
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-colorize">
    <strong><code>imagick::COMPOSITE_COLORIZE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Colorizes the target image using the composite image
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-copyblack">
    <strong><code>imagick::COMPOSITE_COPYBLACK</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Copies black from the source to target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-copyblue">
    <strong><code>imagick::COMPOSITE_COPYBLUE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Copies blue from the source to target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-copy">
    <strong><code>imagick::COMPOSITE_COPY</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Copies the source image on the target image
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-copycyan">
    <strong><code>imagick::COMPOSITE_COPYCYAN</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Copies cyan from the source to target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-copygreen">
    <strong><code>imagick::COMPOSITE_COPYGREEN</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Copies green from the source to target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-copymagenta">
    <strong><code>imagick::COMPOSITE_COPYMAGENTA</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Copies magenta from the source to target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-copyopacity">
    <strong><code>imagick::COMPOSITE_COPYOPACITY</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Copies opacity from the source to target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-copyred">
    <strong><code>imagick::COMPOSITE_COPYRED</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Copies red from the source to target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-copyyellow">
    <strong><code>imagick::COMPOSITE_COPYYELLOW</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Copies yellow from the source to target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-darken">
    <strong><code>imagick::COMPOSITE_DARKEN</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Darkens the target image
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-dstatop">
    <strong><code>imagick::COMPOSITE_DSTATOP</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The part of the destination lying inside of the source is composited over the source and replaces the destination
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-dst">
    <strong><code>imagick::COMPOSITE_DST</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The target is left untouched
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-dstin">
    <strong><code>imagick::COMPOSITE_DSTIN</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The parts inside the source replace the target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-dstout">
    <strong><code>imagick::COMPOSITE_DSTOUT</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The parts outside the source replace the target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-dstover">
    <strong><code>imagick::COMPOSITE_DSTOVER</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Target replaces the source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-difference">
    <strong><code>imagick::COMPOSITE_DIFFERENCE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Subtracts the darker of the two constituent colors from the lighter
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-displace">
    <strong><code>imagick::COMPOSITE_DISPLACE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Shifts target image pixels as defined by the source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-dissolve">
    <strong><code>imagick::COMPOSITE_DISSOLVE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Dissolves the source in to the target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-exclusion">
    <strong><code>imagick::COMPOSITE_EXCLUSION</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Produces an effect similar to that of imagick::COMPOSITE_DIFFERENCE, but appears as lower contrast
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-hardlight">
    <strong><code>imagick::COMPOSITE_HARDLIGHT</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Multiplies or screens the colors, dependent on the source color value
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-hue">
    <strong><code>imagick::COMPOSITE_HUE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Modifies the hue of the target as defined by source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-in">
    <strong><code>imagick::COMPOSITE_IN</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Composites source into the target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-lighten">
    <strong><code>imagick::COMPOSITE_LIGHTEN</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Lightens the target as defined by source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-luminize">
    <strong><code>imagick::COMPOSITE_LUMINIZE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Luminizes the target as defined by source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-minus">
    <strong><code>imagick::COMPOSITE_MINUS</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Subtracts the source from the target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-modulate">
    <strong><code>imagick::COMPOSITE_MODULATE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Modulates the target brightness, saturation and hue as defined by source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-multiply">
    <strong><code>imagick::COMPOSITE_MULTIPLY</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Multiplies the target to the source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-out">
    <strong><code>imagick::COMPOSITE_OUT</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Composites outer parts of the source on the target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-over">
    <strong><code>imagick::COMPOSITE_OVER</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Composites source over the target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-overlay">
    <strong><code>imagick::COMPOSITE_OVERLAY</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Overlays the source on the target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-plus">
    <strong><code>imagick::COMPOSITE_PLUS</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Adds the source to the target
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-replace">
    <strong><code>imagick::COMPOSITE_REPLACE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Replaces the target with the source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-saturate">
    <strong><code>imagick::COMPOSITE_SATURATE</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Saturates the target as defined by the source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-screen">
    <strong><code>imagick::COMPOSITE_SCREEN</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The source and destination are complemented and then multiplied and then replace the destination
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-softlight">
    <strong><code>imagick::COMPOSITE_SOFTLIGHT</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Darkens or lightens the colors, dependent on the source
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-srcatop">
    <strong><code>imagick::COMPOSITE_SRCATOP</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The part of the source lying inside of the destination is composited onto the destination
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-src">
    <strong><code>imagick::COMPOSITE_SRC</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The source is copied to the destination
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-srcin">
    <strong><code>imagick::COMPOSITE_SRCIN</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The part of the source lying inside of the destination replaces the destination
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-srcout">
    <strong><code>imagick::COMPOSITE_SRCOUT</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The part of the source lying outside of the destination replaces the destination
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-srcover">
    <strong><code>imagick::COMPOSITE_SRCOVER</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The source replaces the destination
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-subtract">
    <strong><code>imagick::COMPOSITE_SUBTRACT</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     Subtract the colors in the source image from the destination image
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-threshold">
    <strong><code>imagick::COMPOSITE_THRESHOLD</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The source is composited on the target as defined by source threshold
    </span>
   </dd>

  
  
   <dt id="imagick.constants.composite-xor">
    <strong><code>imagick::COMPOSITE_XOR</code></strong>
    (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
   </dt>

   <dd>

    <span class="simpara">
     The part of the source that lies outside of the destination is combined with the part of the destination that lies outside of the source
    </span>
   </dd>

  
 </dl>


 <dl>

  <strong class="title">MONTAGEMODE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.montagemode-frame">
     <strong><code>imagick::MONTAGEMODE_FRAME</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.montagemode-unframe">
     <strong><code>imagick::MONTAGEMODE_UNFRAME</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.montagemode-concatenate">
     <strong><code>imagick::MONTAGEMODE_CONCATENATE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">STYLE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.style-normal">
     <strong><code>imagick::STYLE_NORMAL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.style-italic">
     <strong><code>imagick::STYLE_ITALIC</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.style-oblique">
     <strong><code>imagick::STYLE_OBLIQUE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.style-any">
     <strong><code>imagick::STYLE_ANY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">FILTER constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.filter-undefined">
     <strong><code>imagick::FILTER_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-point">
     <strong><code>imagick::FILTER_POINT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-box">
     <strong><code>imagick::FILTER_BOX</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-triangle">
     <strong><code>imagick::FILTER_TRIANGLE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-hermite">
     <strong><code>imagick::FILTER_HERMITE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-hanning">
     <strong><code>imagick::FILTER_HANNING</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-hamming">
     <strong><code>imagick::FILTER_HAMMING</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-blackman">
     <strong><code>imagick::FILTER_BLACKMAN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-gaussian">
     <strong><code>imagick::FILTER_GAUSSIAN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-quadratic">
     <strong><code>imagick::FILTER_QUADRATIC</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-cubic">
     <strong><code>imagick::FILTER_CUBIC</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-catrom">
     <strong><code>imagick::FILTER_CATROM</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-mitchell">
     <strong><code>imagick::FILTER_MITCHELL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-lanczos">
     <strong><code>imagick::FILTER_LANCZOS</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-bessel">
     <strong><code>imagick::FILTER_BESSEL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.filter-sinc">
     <strong><code>imagick::FILTER_SINC</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">IMGTYPE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.imgtype-undefined">
     <strong><code>imagick::IMGTYPE_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-bilevel">
     <strong><code>imagick::IMGTYPE_BILEVEL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-grayscale">
     <strong><code>imagick::IMGTYPE_GRAYSCALE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-grayscalematte">
     <strong><code>imagick::IMGTYPE_GRAYSCALEMATTE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-palette">
     <strong><code>imagick::IMGTYPE_PALETTE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-palettematte">
     <strong><code>imagick::IMGTYPE_PALETTEMATTE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-truecolor">
     <strong><code>imagick::IMGTYPE_TRUECOLOR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-truecolormatte">
     <strong><code>imagick::IMGTYPE_TRUECOLORMATTE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-colorseparation">
     <strong><code>imagick::IMGTYPE_COLORSEPARATION</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-colorseparationmatte">
     <strong><code>imagick::IMGTYPE_COLORSEPARATIONMATTE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.imgtype-optimize">
     <strong><code>imagick::IMGTYPE_OPTIMIZE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">RESOLUTION constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.resolution-undefined">
     <strong><code>imagick::RESOLUTION_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.resolution-pixelsperinch">
     <strong><code>imagick::RESOLUTION_PIXELSPERINCH</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.resolution-pixelspercentimeter">
     <strong><code>imagick::RESOLUTION_PIXELSPERCENTIMETER</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">COMPRESSION constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.compression-undefined">
     <strong><code>imagick::COMPRESSION_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-no">
     <strong><code>imagick::COMPRESSION_NO</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-bzip">
     <strong><code>imagick::COMPRESSION_BZIP</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-fax">
     <strong><code>imagick::COMPRESSION_FAX</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-group4">
     <strong><code>imagick::COMPRESSION_GROUP4</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-jpeg">
     <strong><code>imagick::COMPRESSION_JPEG</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-jpeg2000">
     <strong><code>imagick::COMPRESSION_JPEG2000</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-losslessjpeg">
     <strong><code>imagick::COMPRESSION_LOSSLESSJPEG</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-lzw">
     <strong><code>imagick::COMPRESSION_LZW</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-rle">
     <strong><code>imagick::COMPRESSION_RLE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-zip">
     <strong><code>imagick::COMPRESSION_ZIP</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-dxt1">
     <strong><code>imagick::COMPRESSION_DXT1</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-dxt3">
     <strong><code>imagick::COMPRESSION_DXT3</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.compression-dxt5">
     <strong><code>imagick::COMPRESSION_DXT5</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.0 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">PAINT constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.paint-point">
     <strong><code>imagick::PAINT_POINT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.paint-replace">
     <strong><code>imagick::PAINT_REPLACE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.paint-floodfill">
     <strong><code>imagick::PAINT_FLOODFILL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.paint-filltoborder">
     <strong><code>imagick::PAINT_FILLTOBORDER</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.paint-reset">
     <strong><code>imagick::PAINT_RESET</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">GRAVITY constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.gravity-northwest">
     <strong><code>imagick::GRAVITY_NORTHWEST</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.gravity-north">
     <strong><code>imagick::GRAVITY_NORTH</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.gravity-northeast">
     <strong><code>imagick::GRAVITY_NORTHEAST</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.gravity-west">
     <strong><code>imagick::GRAVITY_WEST</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.gravity-center">
     <strong><code>imagick::GRAVITY_CENTER</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.gravity-east">
     <strong><code>imagick::GRAVITY_EAST</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.gravity-southwest">
     <strong><code>imagick::GRAVITY_SOUTHWEST</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.gravity-south">
     <strong><code>imagick::GRAVITY_SOUTH</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.gravity-southeast">
     <strong><code>imagick::GRAVITY_SOUTHEAST</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">STRETCH constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.stretch-normal">
     <strong><code>imagick::STRETCH_NORMAL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.stretch-ultracondensed">
     <strong><code>imagick::STRETCH_ULTRACONDENSED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.stretch-condensed">
     <strong><code>imagick::STRETCH_CONDENSED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.stretch-semicondensed">
     <strong><code>imagick::STRETCH_SEMICONDENSED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.stretch-semiexpanded">
     <strong><code>imagick::STRETCH_SEMIEXPANDED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.stretch-expanded">
     <strong><code>imagick::STRETCH_EXPANDED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.stretch-extraexpanded">
     <strong><code>imagick::STRETCH_EXTRAEXPANDED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.stretch-ultraexpanded">
     <strong><code>imagick::STRETCH_ULTRAEXPANDED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.stretch-any">
     <strong><code>imagick::STRETCH_ANY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">ALIGN constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.align-undefined">
     <strong><code>imagick::ALIGN_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.align-left">
     <strong><code>imagick::ALIGN_LEFT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.align-center">
     <strong><code>imagick::ALIGN_CENTER</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.align-right">
     <strong><code>imagick::ALIGN_RIGHT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">DECORATION constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.decoration-no">
     <strong><code>imagick::DECORATION_NO</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.decoration-underline">
     <strong><code>imagick::DECORATION_UNDERLINE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.decoration-overline">
     <strong><code>imagick::DECORATION_OVERLINE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.decoration-linetrough">
     <strong><code>imagick::DECORATION_LINETROUGH</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">NOISE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.noise-uniform">
     <strong><code>imagick::NOISE_UNIFORM</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.noise-gaussian">
     <strong><code>imagick::NOISE_GAUSSIAN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.noise-multiplicativegaussian">
     <strong><code>imagick::NOISE_MULTIPLICATIVEGAUSSIAN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.noise-impulse">
     <strong><code>imagick::NOISE_IMPULSE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.noise-laplacian">
     <strong><code>imagick::NOISE_LAPLACIAN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.noise-poisson">
     <strong><code>imagick::NOISE_POISSON</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.noise-random">
     <strong><code>imagick::NOISE_RANDOM</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.6 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">CHANNEL constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.channel-undefined">
     <strong><code>imagick::CHANNEL_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-red">
     <strong><code>imagick::CHANNEL_RED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-gray">
     <strong><code>imagick::CHANNEL_GRAY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-cyan">
     <strong><code>imagick::CHANNEL_CYAN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-green">
     <strong><code>imagick::CHANNEL_GREEN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-magenta">
     <strong><code>imagick::CHANNEL_MAGENTA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-blue">
     <strong><code>imagick::CHANNEL_BLUE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-yellow">
     <strong><code>imagick::CHANNEL_YELLOW</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-alpha">
     <strong><code>imagick::CHANNEL_ALPHA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-opacity">
     <strong><code>imagick::CHANNEL_OPACITY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-matte">
     <strong><code>imagick::CHANNEL_MATTE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-black">
     <strong><code>imagick::CHANNEL_BLACK</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-index">
     <strong><code>imagick::CHANNEL_INDEX</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-all">
     <strong><code>imagick::CHANNEL_ALL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.channel-default">
     <strong><code>imagick::CHANNEL_DEFAULT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">METRIC constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.metric-undefined">
     <strong><code>imagick::METRIC_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.metric-meanabsoluteerror">
     <strong><code>imagick::METRIC_MEANABSOLUTEERROR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.metric-meansquareerror">
     <strong><code>imagick::METRIC_MEANSQUAREERROR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.metric-peakabsoluteerror">
     <strong><code>imagick::METRIC_PEAKABSOLUTEERROR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.metric-peaksignaltonoiseratio">
     <strong><code>imagick::METRIC_PEAKSIGNALTONOISERATIO</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.metric-rootmeansquarederror">
     <strong><code>imagick::METRIC_ROOTMEANSQUAREDERROR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">PIXEL constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.pixel-char">
     <strong><code>imagick::PIXEL_CHAR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.pixel-double">
     <strong><code>imagick::PIXEL_DOUBLE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.pixel-float">
     <strong><code>imagick::PIXEL_FLOAT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.pixel-integer">
     <strong><code>imagick::PIXEL_INTEGER</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.pixel-long">
     <strong><code>imagick::PIXEL_LONG</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.pixel-quantum">
     <strong><code>imagick::PIXEL_QUANTUM</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.pixel-short">
     <strong><code>imagick::PIXEL_SHORT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">EVALUATE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.evaluate-undefined">
     <strong><code>imagick::EVALUATE_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-add">
     <strong><code>imagick::EVALUATE_ADD</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-and">
     <strong><code>imagick::EVALUATE_AND</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-divide">
     <strong><code>imagick::EVALUATE_DIVIDE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-leftshift">
     <strong><code>imagick::EVALUATE_LEFTSHIFT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-max">
     <strong><code>imagick::EVALUATE_MAX</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-min">
     <strong><code>imagick::EVALUATE_MIN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-multiply">
     <strong><code>imagick::EVALUATE_MULTIPLY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-or">
     <strong><code>imagick::EVALUATE_OR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-rightshift">
     <strong><code>imagick::EVALUATE_RIGHTSHIFT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-set">
     <strong><code>imagick::EVALUATE_SET</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-subtract">
     <strong><code>imagick::EVALUATE_SUBTRACT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-xor">
     <strong><code>imagick::EVALUATE_XOR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-pow">
     <strong><code>imagick::EVALUATE_POW</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-log">
     <strong><code>imagick::EVALUATE_LOG</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-threshold">
     <strong><code>imagick::EVALUATE_THRESHOLD</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-thresholdblack">
     <strong><code>imagick::EVALUATE_THRESHOLDBLACK</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-thresholdwhite">
     <strong><code>imagick::EVALUATE_THRESHOLDWHITE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-gaussiannoise">
     <strong><code>imagick::EVALUATE_GAUSSIANNOISE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-impulsenoise">
     <strong><code>imagick::EVALUATE_IMPULSENOISE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-laplaciannoise">
     <strong><code>imagick::EVALUATE_LAPLACIANNOISE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-multiplicativenoise">
     <strong><code>imagick::EVALUATE_MULTIPLICATIVENOISE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-poissonnoise">
     <strong><code>imagick::EVALUATE_POISSONNOISE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-uniformnoise">
     <strong><code>imagick::EVALUATE_UNIFORMNOISE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-cosine">
     <strong><code>imagick::EVALUATE_COSINE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-sine">
     <strong><code>imagick::EVALUATE_SINE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.evaluate-addmodulus">
     <strong><code>imagick::EVALUATE_ADDMODULUS</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.4 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">COLORSPACE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.colorspace-undefined">
     <strong><code>imagick::COLORSPACE_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-rgb">
     <strong><code>imagick::COLORSPACE_RGB</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-gray">
     <strong><code>imagick::COLORSPACE_GRAY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-transparent">
     <strong><code>imagick::COLORSPACE_TRANSPARENT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-ohta">
     <strong><code>imagick::COLORSPACE_OHTA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-lab">
     <strong><code>imagick::COLORSPACE_LAB</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-xyz">
     <strong><code>imagick::COLORSPACE_XYZ</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-ycbcr">
     <strong><code>imagick::COLORSPACE_YCBCR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-ycc">
     <strong><code>imagick::COLORSPACE_YCC</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-yiq">
     <strong><code>imagick::COLORSPACE_YIQ</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-ypbpr">
     <strong><code>imagick::COLORSPACE_YPBPR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-yuv">
     <strong><code>imagick::COLORSPACE_YUV</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-cmyk">
     <strong><code>imagick::COLORSPACE_CMYK</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-srgb">
     <strong><code>imagick::COLORSPACE_SRGB</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-hsb">
     <strong><code>imagick::COLORSPACE_HSB</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-hsl">
     <strong><code>imagick::COLORSPACE_HSL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-hwb">
     <strong><code>imagick::COLORSPACE_HWB</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-rec601luma">
     <strong><code>imagick::COLORSPACE_REC601LUMA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-rec709luma">
     <strong><code>imagick::COLORSPACE_REC709LUMA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-log">
     <strong><code>imagick::COLORSPACE_LOG</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.colorspace-cmy">
     <strong><code>imagick::COLORSPACE_CMY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.2 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">VIRTUALPIXELMETHOD constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.virtualpixelmethod-undefined">
     <strong><code>imagick::VIRTUALPIXELMETHOD_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-background">
     <strong><code>imagick::VIRTUALPIXELMETHOD_BACKGROUND</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-constant">
     <strong><code>imagick::VIRTUALPIXELMETHOD_CONSTANT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-edge">
     <strong><code>imagick::VIRTUALPIXELMETHOD_EDGE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-mirror">
     <strong><code>imagick::VIRTUALPIXELMETHOD_MIRROR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-tile">
     <strong><code>imagick::VIRTUALPIXELMETHOD_TILE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-transparent">
     <strong><code>imagick::VIRTUALPIXELMETHOD_TRANSPARENT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-mask">
     <strong><code>imagick::VIRTUALPIXELMETHOD_MASK</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-black">
     <strong><code>imagick::VIRTUALPIXELMETHOD_BLACK</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-gray">
     <strong><code>imagick::VIRTUALPIXELMETHOD_GRAY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-white">
     <strong><code>imagick::VIRTUALPIXELMETHOD_WHITE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-horizontaltile">
     <strong><code>imagick::VIRTUALPIXELMETHOD_HORIZONTALTILE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.3 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.virtualpixelmethod-verticaltile">
     <strong><code>imagick::VIRTUALPIXELMETHOD_VERTICALTILE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.3 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">PREVIEW constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.preview-undefined">
     <strong><code>imagick::PREVIEW_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-rotate">
     <strong><code>imagick::PREVIEW_ROTATE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-shear">
     <strong><code>imagick::PREVIEW_SHEAR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-roll">
     <strong><code>imagick::PREVIEW_ROLL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-hue">
     <strong><code>imagick::PREVIEW_HUE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-saturation">
     <strong><code>imagick::PREVIEW_SATURATION</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-brightness">
     <strong><code>imagick::PREVIEW_BRIGHTNESS</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-gamma">
     <strong><code>imagick::PREVIEW_GAMMA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-spiff">
     <strong><code>imagick::PREVIEW_SPIFF</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-dull">
     <strong><code>imagick::PREVIEW_DULL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-grayscale">
     <strong><code>imagick::PREVIEW_GRAYSCALE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-quantize">
     <strong><code>imagick::PREVIEW_QUANTIZE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-despeckle">
     <strong><code>imagick::PREVIEW_DESPECKLE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-reducenoise">
     <strong><code>imagick::PREVIEW_REDUCENOISE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-addnoise">
     <strong><code>imagick::PREVIEW_ADDNOISE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-sharpen">
     <strong><code>imagick::PREVIEW_SHARPEN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-blur">
     <strong><code>imagick::PREVIEW_BLUR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-threshold">
     <strong><code>imagick::PREVIEW_THRESHOLD</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-edgedetect">
     <strong><code>imagick::PREVIEW_EDGEDETECT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-spread">
     <strong><code>imagick::PREVIEW_SPREAD</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-solarize">
     <strong><code>imagick::PREVIEW_SOLARIZE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-shade">
     <strong><code>imagick::PREVIEW_SHADE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-raise">
     <strong><code>imagick::PREVIEW_RAISE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-segment">
     <strong><code>imagick::PREVIEW_SEGMENT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-swirl">
     <strong><code>imagick::PREVIEW_SWIRL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-implode">
     <strong><code>imagick::PREVIEW_IMPLODE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-wave">
     <strong><code>imagick::PREVIEW_WAVE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-oilpaint">
     <strong><code>imagick::PREVIEW_OILPAINT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-charcoaldrawing">
     <strong><code>imagick::PREVIEW_CHARCOALDRAWING</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.preview-jpeg">
     <strong><code>imagick::PREVIEW_JPEG</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">RENDERINGINTENT constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.renderingintent-undefined">
     <strong><code>imagick::RENDERINGINTENT_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.renderingintent-saturation">
     <strong><code>imagick::RENDERINGINTENT_SATURATION</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.renderingintent-perceptual">
     <strong><code>imagick::RENDERINGINTENT_PERCEPTUAL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.renderingintent-absolute">
     <strong><code>imagick::RENDERINGINTENT_ABSOLUTE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.renderingintent-relative">
     <strong><code>imagick::RENDERINGINTENT_RELATIVE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">INTERLACE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.interlace-undefined">
     <strong><code>imagick::INTERLACE_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interlace-no">
     <strong><code>imagick::INTERLACE_NO</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interlace-line">
     <strong><code>imagick::INTERLACE_LINE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interlace-plane">
     <strong><code>imagick::INTERLACE_PLANE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interlace-partition">
     <strong><code>imagick::INTERLACE_PARTITION</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interlace-gif">
     <strong><code>imagick::INTERLACE_GIF</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.4 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interlace-jpeg">
     <strong><code>imagick::INTERLACE_JPEG</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interlace-png">
     <strong><code>imagick::INTERLACE_PNG</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">FILLRULE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.fillrule-undefined">
     <strong><code>imagick::FILLRULE_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.fillrule-evenodd">
     <strong><code>imagick::FILLRULE_EVENODD</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.fillrule-nonzero">
     <strong><code>imagick::FILLRULE_NONZERO</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">PATHUNITS constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.pathunits-undefined">
     <strong><code>imagick::PATHUNITS_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.pathunits-userspace">
     <strong><code>imagick::PATHUNITS_USERSPACE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.pathunits-userspaceonuse">
     <strong><code>imagick::PATHUNITS_USERSPACEONUSE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.pathunits-objectboundingbox">
     <strong><code>imagick::PATHUNITS_OBJECTBOUNDINGBOX</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">LINECAP constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.linecap-undefined">
     <strong><code>imagick::LINECAP_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.linecap-butt">
     <strong><code>imagick::LINECAP_BUTT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.linecap-round">
     <strong><code>imagick::LINECAP_ROUND</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.linecap-square">
     <strong><code>imagick::LINECAP_SQUARE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">LINEJOIN constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.linejoin-undefined">
     <strong><code>imagick::LINEJOIN_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.linejoin-miter">
     <strong><code>imagick::LINEJOIN_MITER</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.linejoin-round">
     <strong><code>imagick::LINEJOIN_ROUND</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.linejoin-bevel">
     <strong><code>imagick::LINEJOIN_BEVEL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">RESOURCETYPE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.resourcetype-undefined">
     <strong><code>imagick::RESOURCETYPE_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
     </span>
    </dd>

   
   
    <dt id="imagick.constants.resourcetype-area">
     <strong><code>imagick::RESOURCETYPE_AREA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Set the maximum width * height of an image that can reside in the pixel cache memory.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.resourcetype-disk">
     <strong><code>imagick::RESOURCETYPE_DISK</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Set maximum amount of disk space in bytes permitted for use by the pixel cache.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.resourcetype-file">
     <strong><code>imagick::RESOURCETYPE_FILE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Set maximum number of open pixel cache files.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.resourcetype-map">
     <strong><code>imagick::RESOURCETYPE_MAP</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Set maximum amount of memory map in bytes to allocate for the pixel cache.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.resourcetype-memory">
     <strong><code>imagick::RESOURCETYPE_MEMORY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Set maximum amount of memory in bytes to allocate for the pixel cache from the heap.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.resourcetype-thread">
     <strong><code>imagick::RESOURCETYPE_THREAD</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      Set maximum parallel threads.
      此常量可用仅当Imagick编译于ImageMagick版本 6.7.8 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">LAYERMETHOD constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.layermethod-undefined">
     <strong><code>imagick::LAYERMETHOD_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.2.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-coalesce">
     <strong><code>imagick::LAYERMETHOD_COALESCE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.2.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-compareany">
     <strong><code>imagick::LAYERMETHOD_COMPAREANY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.2.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-compareclear">
     <strong><code>imagick::LAYERMETHOD_COMPARECLEAR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.2.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-compareoverlay">
     <strong><code>imagick::LAYERMETHOD_COMPAREOVERLAY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.2.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-dispose">
     <strong><code>imagick::LAYERMETHOD_DISPOSE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.2.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-optimize">
     <strong><code>imagick::LAYERMETHOD_OPTIMIZE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.2.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-optimizeplus">
     <strong><code>imagick::LAYERMETHOD_OPTIMIZEPLUS</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.2.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-optimizeimage">
     <strong><code>imagick::LAYERMETHOD_OPTIMIZEIMAGE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-optimizetrans">
     <strong><code>imagick::LAYERMETHOD_OPTIMIZETRANS</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-removedups">
     <strong><code>imagick::LAYERMETHOD_REMOVEDUPS</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-removezero">
     <strong><code>imagick::LAYERMETHOD_REMOVEZERO</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-composite">
     <strong><code>imagick::LAYERMETHOD_COMPOSITE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-merge">
     <strong><code>imagick::LAYERMETHOD_MERGE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.7 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-flatten">
     <strong><code>imagick::LAYERMETHOD_FLATTEN</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.7 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.layermethod-mosaic">
     <strong><code>imagick::LAYERMETHOD_MOSAIC</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.7 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">ORIENTATION constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.orientation-undefined">
     <strong><code>imagick::ORIENTATION_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.orientation-topleft">
     <strong><code>imagick::ORIENTATION_TOPLEFT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.orientation-topright">
     <strong><code>imagick::ORIENTATION_TOPRIGHT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.orientation-bottomright">
     <strong><code>imagick::ORIENTATION_BOTTOMRIGHT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.orientation-bottomleft">
     <strong><code>imagick::ORIENTATION_BOTTOMLEFT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.orientation-lefttop">
     <strong><code>imagick::ORIENTATION_LEFTTOP</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.orientation-righttop">
     <strong><code>imagick::ORIENTATION_RIGHTTOP</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.orientation-rightbottom">
     <strong><code>imagick::ORIENTATION_RIGHTBOTTOM</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.orientation-leftbottom">
     <strong><code>imagick::ORIENTATION_LEFTBOTTOM</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.0 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">DISTORTION constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.distortion-undefined">
     <strong><code>imagick::DISTORTION_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-affine">
     <strong><code>imagick::DISTORTION_AFFINE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-affineprojection">
     <strong><code>imagick::DISTORTION_AFFINEPROJECTION</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-arc">
     <strong><code>imagick::DISTORTION_ARC</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-bilinear">
     <strong><code>imagick::DISTORTION_BILINEAR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-perspective">
     <strong><code>imagick::DISTORTION_PERSPECTIVE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-perspectiveprojection">
     <strong><code>imagick::DISTORTION_PERSPECTIVEPROJECTION</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-scalerotatetranslate">
     <strong><code>imagick::DISTORTION_SCALEROTATETRANSLATE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-polynomial">
     <strong><code>imagick::DISTORTION_POLYNOMIAL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-polar">
     <strong><code>imagick::DISTORTION_POLAR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-depolar">
     <strong><code>imagick::DISTORTION_DEPOLAR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-barrel">
     <strong><code>imagick::DISTORTION_BARREL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-barrelinverse">
     <strong><code>imagick::DISTORTION_BARRELINVERSE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-shepards">
     <strong><code>imagick::DISTORTION_SHEPARDS</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.distortion-sentinel">
     <strong><code>imagick::DISTORTION_SENTINEL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">ALPHACHANNEL constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.alphachannel-activate">
     <strong><code>imagick::ALPHACHANNEL_ACTIVATE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.8 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.alphachannel-deactivate">
     <strong><code>imagick::ALPHACHANNEL_DEACTIVATE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.8 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.alphachannel-reset">
     <strong><code>imagick::ALPHACHANNEL_RESET</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.8 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.alphachannel-set">
     <strong><code>imagick::ALPHACHANNEL_SET</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.8 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.alphachannel-undefined">
     <strong><code>imagick::ALPHACHANNEL_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.alphachannel-copy">
     <strong><code>imagick::ALPHACHANNEL_COPY</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.alphachannel-extract">
     <strong><code>imagick::ALPHACHANNEL_EXTRACT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.alphachannel-opaque">
     <strong><code>imagick::ALPHACHANNEL_OPAQUE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.alphachannel-shape">
     <strong><code>imagick::ALPHACHANNEL_SHAPE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.alphachannel-transparent">
     <strong><code>imagick::ALPHACHANNEL_TRANSPARENT</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">SPARSECOLORMETHOD constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.sparsecolormethod-undefined">
     <strong><code>imagick::SPARSECOLORMETHOD_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.sparsecolormethod-barycentric">
     <strong><code>imagick::SPARSECOLORMETHOD_BARYCENTRIC</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.sparsecolormethod-bilinear">
     <strong><code>imagick::SPARSECOLORMETHOD_BILINEAR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.sparsecolormethod-polynomial">
     <strong><code>imagick::SPARSECOLORMETHOD_POLYNOMIAL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.sparsecolormethod-spepards">
     <strong><code>imagick::SPARSECOLORMETHOD_SPEPARDS</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.sparsecolormethod-voronoi">
     <strong><code>imagick::SPARSECOLORMETHOD_VORONOI</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">FUNCTION constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.function-undefined">
     <strong><code>imagick::FUNCTION_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.function-polynomial">
     <strong><code>imagick::FUNCTION_POLYNOMIAL</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.9 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.function-sinusoid">
     <strong><code>imagick::FUNCTION_SINUSOID</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.9 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">INTERPOLATE constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.interpolate-undefined">
     <strong><code>imagick::INTERPOLATE_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interpolate-average">
     <strong><code>imagick::INTERPOLATE_AVERAGE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interpolate-bicubic">
     <strong><code>imagick::INTERPOLATE_BICUBIC</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interpolate-bilinear">
     <strong><code>imagick::INTERPOLATE_BILINEAR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interpolate-filter">
     <strong><code>imagick::INTERPOLATE_FILTER</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interpolate-integer">
     <strong><code>imagick::INTERPOLATE_INTEGER</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interpolate-mesh">
     <strong><code>imagick::INTERPOLATE_MESH</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interpolate-nearestneighbor">
     <strong><code>imagick::INTERPOLATE_NEARESTNEIGHBOR</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.2 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.interpolate-spline">
     <strong><code>imagick::INTERPOLATE_SPLINE</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.3.4 or higher.
     </span>
    </dd>

   
 </dl>


 <dl>

  <strong class="title">DITHERMETHOD constants</strong>
  <p class="para"/>
   
    <dt id="imagick.constants.dithermethod-undefined">
     <strong><code>imagick::DITHERMETHOD_UNDEFINED</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.dithermethod-no">
     <strong><code>imagick::DITHERMETHOD_NO</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.dithermethod-riemersma">
     <strong><code>imagick::DITHERMETHOD_RIEMERSMA</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
   
    <dt id="imagick.constants.dithermethod-floydsteinberg">
     <strong><code>imagick::DITHERMETHOD_FLOYDSTEINBERG</code></strong>
     (<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
    </dt>

    <dd>

     <span class="simpara">
      此常量可用仅当Imagick编译于ImageMagick版本 6.4.6 or higher.
     </span>
    </dd>

   
 </dl>

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